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3 years ago

Emma had $2.40 to spend on seven pencils. After buying them she had $1.00. How much did each pencil cost?

Mathematics

2 answers:

OlgaM077 [116]3 years ago

8 0

Answer:

Each pencil costs 20 cents

Step-by-step explanation:

2.40 - 1 = 1.40

1.40/7 = 0.2

ludmilkaskok [199]3 years ago

3 0

Answer:

$0. 20

Step-by-step explanation:

emma had $2.40 but she spent $1.40 on 7 pencils

if she bought 7 pencils and had $1.00 left

so you would do $2.40 - $1.00 because she had $1.00 left after she bought the pencils.

the answer would be $1.40 because that is how much she spent and you divide that by 7 because she bought 7 pencils.

so 140 divided by 7 = 20

but since its $ dollars you put it into cents leaving you with the answer

$)0.20

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Answer:

See explanation

Step-by-step explanation:

The given expression is: $(24)^{\frac{1}{3}}$

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We rewrite in radical form to obtain

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3 years ago

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Step-by-step explanation:

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Find the distance between the points (8,1) and (2,10).<br> Round decimals to the nearest tenth.

miss Akunina [59]

The nearest distance between the points (8,1) and (2,10) is 11 units, which is mentioned in and also calculated by using formula.

Step-by-step explanation:

The given is,

Two points are (8,1) (2,10)

Step: 1

By graphical method, refer the attachment,

First point (8,1)

The values of x=8 and y=1 noted in the graph

Second point (2,10)

The values of x=2 and y=10 noted in the graph

Now join the two points (8,1) and (2,10)

Measure the distance between two points, the distance is 11 units. Due to some error the value becomes 10.98 or 11.1 we need to convert the answer into nearest whole number.

( OR )

Step:1

By formula method,

Distance = $\sqrt{(x_{2} - x_{1} )^{2} +(y_{2} - y_{1} )^{2} }$ .....................(1)

Where,

(8,1) are ( $x_{1},y_{1}$ )

(2,10) are ( $x_{2},y_{2}$ )

From the equation,

= $\sqrt{(2 - 8 )^{2} +(10 - 1 )^{2} }$

= $\sqrt{(-6 )^{2} +(9 )^{2} }$

= $\sqrt{36 +81 }$

= $\sqrt{117}$

= 10.81665

≅ 11 ( Answer convert to the nearest tenth)

Distance = 11 units

Result:

The nearest distance between the points (8,1) and (2,10) is 11 units, which is mentioned in and also calculated by using formula.

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